Arnold
Key Takeaway
Arnold is classified as low hazard in Wyoming. It was completed in 1968 and is 58 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 33 ft (taller than 75.3% in WY) |
| Dam Length | 300 ft |
| Dam Type | Earth |
| Max Storage | 2.6K acre-ft |
| Normal Storage | 1.1K acre-ft |
| Surface Area | 227 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 499 cfs |
| Year Completed | 1968 (58 years old) |
| NID ID | WY00274 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
Gregg D. Jones et al
Private
Nearby Dams
Frequently Asked Questions
What is the hazard classification of Arnold?
Arnold is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Arnold?
Arnold is owned by Gregg D. Jones et al (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Arnold built?
Arnold was completed in 1968, making it 58 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Arnold?
Arnold serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Arnold?
Arnold has a dam height of 33 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Arnold last inspected?
Arnold was last inspected on May 1, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.